Hello.
From Datashet on ADS5409 , Setup and Hold time, is 230 ps. This means that valid data window is 460 ps?
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Hello.
From Datashet on ADS5409 , Setup and Hold time, is 230 ps. This means that valid data window is 460 ps?
Hi,
when the decimation filter is enabled, the data rate of the sample bus will be half, so the clock period of the sample clock will be longer. The data valid window will be longer as well, but I do not see characterization data for how much longer the data valid window will be. The extra time of the longer clock period will add to the data valid window, but I do not know if all of the longer clock period will add to setup, or add to hold, or add half of that extra time to each of setup and hold. If possible, I think it safest to continue to use the specified 230ps of guaranteed setup time and 230ps of guaranteed hold time.
Regards,
Richard P.